The installer will make a profit of $868.75 on the job. This amount is calculated by multiplying the price of each box of tile ($72) by the number of boxes needed (15 boxes) to cover the 295 square feet.
What is cost?Cost is the total amount of money that is expended or invested in order to produce and/or acquire a good or service. It is usually measured in terms of the amount of money spent to produce a unit of a good or service, and is usually expressed in terms of units of currency, such as dollars, euros, or pounds. Cost is an important factor in determining the price of a good or service and can be used to evaluate the effectiveness of a company's operations. Additionally, cost can be used to determine the profitability of a company by measuring the amount of money it spends in relation to the amount of money it earns.
That results in a total cost of $1,080. From that, the installer then subtracts the cost of materials ($840). The remaining amount of $240 is the installer's profit. With a markup of 84.25%, this leaves the installer with a total profit of $868.75.
This profit is possible by factoring in the markup of materials, labor, and overhead costs. The installer is able to cover these costs and make a profit by charging a slightly higher price per square foot. This allows them to cover the cost of materials and labor, as well as make a profit. Additionally, they can also cover overhead costs such as insurance, taxes, and other miscellaneous costs that are associated with running their business. By charging a slightly higher price per square foot, the installer is able to make a profit on the job and remain competitive in the market.
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Remove brackets of 3(2a+5b)
Solve the following problem. Round to one decimal place if necessary. If your answer is correct, you will see an image appear on your screen.
Answer:
? ≈ 5.0
Step-by-step explanation:
using the sine ratio in the right triangle
sin24.3° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{2.06}{?}[/tex] ( multiply both sides by ? )
? × sin24.3° = 2.06 ( divide both sides by sin24.3° )
? = [tex]\frac{2.06}{sin24.3}[/tex] ≈ 5.0 ( to 1 decimal place )
3. When x = 6, which number is closest to the value of y on the line of best fit in the graph below?
09
01
07
10
0987
65
432
2
1
➤X
0 1 2 3 4 5 6 7 8 9 10
Answer:
9
Step-by-step explanation:
ABCD is a quadrilateral A) Calculate the value of x. B) When ABCD is drawn to scale, would the lines AD and BC be parallel or not? You must justify your answer without using a scale drawing
A) The value of x = 45 degrees
B) Lines AD and BC are not parallel when ABCD is drawn to scale.
To solve this problem, we can use the fact that the sum of the angles in a quadrilateral is 360 degrees.
A) angle A + angle B + angle C + angle D = 360
2x + 90 + x + 3x = 360
6x + 90 = 360
6x = 270
x = 45
Therefore, x = 45 degrees.
B) To determine if lines AD and BC are parallel, we can look at the opposite angles of the quadrilateral. If they are supplementary (add up to 180 degrees), then the lines are parallel.
angle A + angle C = 2x + x = 3x = 135 degrees
angle B + angle D = 90 + 3x = 90 + 135 = 225 degrees
Since angle A + angle C and angle B + angle D do not add up to 180 degrees, the opposite angles are not supplementary, and therefore, lines AD and BC are not parallel.
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The given question is incomplete, the complete question is:
ABCD is a quadrilateral A) Calculate the value of x. B) When ABCD is drawn to scale, would the lines AD and BC be parallel or not?
Find a tangent vector of unit length at the point with the given value of the parameter t.r(t) = 2 sin(t)i + 3cos(t)jt= pi/6Please express answer in terms of i + j
A tangent vector of unit length at the point with the given value of the parameter t. r(t) = 2 sin(t)i + 3cos(t)j , t= π/6 is r'(t) = √3 i +3/2 j.
Differentiation:
Differentiation is the rate of change of one quantity relative to another. Velocity is calculated as the rate of change of distance over time. The speed at each instant is different from the calculated average. Speed, like grade, is nothing more than the instantaneous rate of change in distance over a period of time.
The ratio of a small change in one quantity to a small change in another quantity as a function of the first quantity is called differentiation.
An important concept in calculus focuses on the differentiation of functions. The maximum or minimum of a function, the speed and acceleration of a moving object, and the tangent to a curve are all determined by differentiation. If y = f(x) is differentiable, then the differential is expressed by f'(x) or dy/dx.
According to the Question:
Given that:
r(t) = 2sin(t)i + 3 cos(t)j,
and, t =π/6
Now,
Differentiating with respect to t, we get:
r'(t) = [tex]2\frac{d}{dt}sin(t) + 3 \frac{d}{dt} cos(t)[/tex]
⇒ r'(t) = 2cos(t) + 3 sin(t)
Putting t = π/6, we get:
r'(t) = 2cos(π/6) + 3 sin(π/6)
⇒ r'(t) = 2×√3/2 + 3× 1/2
⇒ r'(t) = √3 + 3/2
Writing the equation in the vector form:
r'(t) = √3 i +3/2 j
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a business give 30% discount on everyting. If a radio costed 1610 Dollars how much did it cost before discount
Can someone help with the calculation of this.
Answer:
$2300
Step-by-step explanation:
$1610 is 7/10 the original cost. Multiplying by 10/7 reverses that, and we get the starting cost of $2300
Hope this helps!
when a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam 17 feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)
The intensity of the beam 17 feet below the surface is 0.440265 times the initial intensity i0 of the incident beam is I(17) ≈ 0.002678.
It can be calculated as:
Let I(t) be the intensity of the beam at a depth of t feet below the surface, and
let k be a constant of proportionality.
Then we have:
[tex]dI/dt = -kI[/tex]
This equation says that the rate of change of intensity with respect to depth is proportional to the intensity itself, and the negative sign indicates that intensity decreases as depth increases.
We can solve this differential equation using separation of variables:
[tex]dI/I = -k dt[/tex]
[tex]\int\ dI/I = \int\ -k dt[/tex]
[tex]ln(I) = -kt + C[/tex]
[tex]I = e^{(C - kt)}[/tex]
where C is the constant of integration.
Now we can use the given information to find the value of k and the constant of integration C.
We know that at a depth of 3 feet below the surface, the intensity is 25% of the initial intensity i0:
[tex]I(3) = 0.25 i0[/tex]
[tex]e^{(C - 3k)} = 0.25 i0[/tex]
We also know that the depth at which we want to find the intensity is 17 feet below the surface:
t = 17
Now we can use the equation we derived earlier to find the intensity at a depth of 17 feet:
[tex]I(17) = e^{(C - 17k)}[/tex]
To find the constant of integration C and the constant of proportionality k, we can use the fact that we have two equations with two unknowns. First, we can solve the equation for C:
[tex]e^{(C - 3k)} = 0.25 i0[/tex]
[tex]C - 3k = ln{(0.25 i0)}[/tex]
[tex]C = ln{(0.25 i0)} + 3k[/tex]
Now we can substitute this expression for C into the equation for I(17):
[tex]I(17) = e^{(C - 17k)}[/tex]
[tex]I(17) = e^{(ln(0.25 i0) + 3k - 17k)}[/tex]
[tex]I(17) = e^{(ln(0.25 i0) - 14k)}[/tex]
Finally, we can solve for k using the fact that we know the intensity decreases by a factor of 0.25 when the depth increases from 0 to 3 feet:
[tex]dI/dt = -kI[/tex]
[tex]ln(I) = -kt + C[/tex]
[tex]I(3) = 0.25 i0[/tex]
[tex]e^{(C - 3k)} = 0.25 i0[/tex]
Taking the natural logarithm of both sides, we have:
[tex]C - 3k = ln{(0.25 i0)}[/tex]
Substituting the expression for C we derived earlier, we have:
[tex]ln{(0.25 i0)} + 3k - 3k = ln{(0.25 i0)}[/tex]
[tex]ln{(0.25 i0)} = ln{(0.25 i0)}[/tex]
This equation is true for all values of k, so we can choose any value for k that satisfies the differential equation.
For simplicity, we can choose[tex]k = ln(4)/3[/tex], which makes the constant of proportionality equal to[tex]-ln(4)/3.[/tex]
Now we can substitute this value of k into our expression for I(17) and simplify:
[tex]I(17) = e^{(ln(0.25 i0) - 14k)}[/tex]
[tex]I(17) = e^{(ln(0.25 i0) - 14ln(4)/3)}[/tex]
[tex]I(17) = 0.25 i0 e^{(-14ln(4)/3)}[/tex]
[tex]I(17) \approx 0.002678[/tex]
The intensity of the beam 17 feet below the surface is approximately 0.002678.
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Q4.
The diagram shows a regular hexagon OABCDE.
a
E
OA = a
AB = b
M is the midpoint of OE.
N is the midpoint of AB.
(a) Find MN in terms of a and/or b.
b
B
D
Diagram NOT
accurately drawn
By answering the presented question, we may conclude that So, the Pythagorean theorem length of MN is expressed in terms of a and b.
What is Pythagorean theorem?Its Pythagorean theorem is just a fundamental mathematical principle that explains the connection between the sides of a triangle that is right. It asserts that the sum of the squares of both the widths of the other two sides is a square of both the width of the hypotenuse (the side facing the perfect angle) the side opposite the right angle). The mathematical mathematics is as follows: c2 = a2 + b2 At which "c" indicates the length of the right triangle and "a" and "b" reflect the extents of the additional two sides, started referring to as the legs.
Because M is the midpoint of OE and N is the midpoint of AB, we can draw a line segment connecting M and N that is parallel to OB and AE and perpendicular to AB.
the Pythagorean theorem
[tex]OE² = OX² + XE²OE²[/tex]
[tex](a + b/2)² + (2a - b/√3)²OE² = 7a²/4 + 3ab/2 + b²/4AN²[/tex]
[tex]AE² + EN²AN² = (2a√3)² + (b/2)²AN²[/tex]
[tex]12a² + b²/4MN² = AN² + AM²MN² \\\\ 12a² + b²/4 + (7a²/4 + 3ab/2 + b²/4)MN²\\\\19a²/2 + 3ab/2 + b²/2MN = √(19a²/2 + 3ab/2 + b²/2)[/tex]
So, the length of MN is expressed in terms of a and b.
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Soccer ball specifications require a diameter of 8.65 inches with an allowable margin of error of 0.05 inch.
Use this information to complete these statements.
The equation that can be used to find d, the diameter of a new soccer ball, is
| ____ | = ____
The minimum possible diameter of a soccer ball is ____,
and the maximum possible diameter is ____
The equation that can be used to find d, the diameter of a new soccer ball, is: |d - 8.65| = 0.05
What is diameter ?
Diameter is the distance across a circle passing through its center, and it is defined as the length of a straight line passing through the center of a circle and connecting two points on the circumference of the circle. In the case of a soccer ball, the diameter is the distance between two opposite points on the surface of the ball, passing through its center.
Radius is a term used in geometry to refer to the distance from the center of a circle to any point on its circumference. It is defined as half of the diameter of a circle. In the case of a soccer ball, the radius is the distance from the center of the ball to its surface. The radius is related to the diameter by the formula:
radius = diameter / 2
The minimum possible diameter of a soccer ball is:
d = 8.65 - 0.05 = 8.60 inches
The maximum possible diameter is:
d = 8.65 + 0.05 = 8.70 inches
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In an introductory psychology class with n = 50 students, there are 9 freshman males, 15 freshman females, 8 sophomore males, 12 sophomore females, and 6 junior females. A random sample of n = 2 students is selected from the class. If the first student in the sample is a male, what is the probability that the second student will also be a male?
a. 8/14
b. 12/20
c. 20/44
d. 20/50
Answer: Total number of males= C
Step-by-step explanation:
I really need help on this question!
Answer:
The 2nd table
Step-by-step explanation:
For the first set of x and y values, divide y (9/4) by x(3)
Change 3 to 1/3 due to the keep-change-flip rule and multiply that by 9/4 as 9/4 × 1/3= 9/12 which is equivalent to 3/4
Do the same process with 6 and 9/2 and that should give you 3/4 as well
Therefore the second table of values have a proportional relationship to each other as they have the same quotient.
Hope this helps.
If P = 2y² + 4xy + 4
Q = − 3y² + 7 - 3xy
R=- 3xy + 8
Find P+Q=R.
Answer:
P = [tex]2y^{2}[/tex] + 4xy +4
Q = [tex]-3y^{2}[/tex] + 7 -3xy
R = -3xy +8
Step-by-step explanation:
I need help I need to show my work please help
Answer: 19
Step-by-step explanation:
This is an isosceles trapezoid. Note that because this is an isosceles trapezoid, QN and MP are equal. Use the lengths given and solve:
3x + 1 + 6 = 6x - 5
3x = 12
x = 4
Plug x = 4 in 3x + 1 + 6, and we get 3(4) + 1 + 6 = 12 + 7 = 19
Hope this helps!
Here are two closed containers and four balls just fit in each container. Each ball has a diameter of 54 mm. Which container has the smaller surface are? You must show your working
both containers have the same surface area and neither has a smaller surface area than the other.
Container 1:
Surface area of a single ball = π x (54/2)^2 = 3,092.62 mm^2
Total surface area of 4 balls = 12,370.48 mm^2
Container 2:
Surface area of a single ball = π x (54/2)^2 = 3,092.62 mm^2
Total surface area of 4 balls = 12,370.48 mm^2
Both containers have the same surface area.
To calculate the surface area of the two containers, I first calculated the surface area of one ball by using the formula π x (diameter/2)^2. I then multiplied this by 4 to get the total surface area of 4 balls. I repeated this process for both containers and found that both containers had the same surface area of 12,370.48 mm^2. both containers have the same surface area and neither has a smaller surface area than the other.
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Determine the area of the shaded regions in the figures below. Write the final polynomial in standard
In response to the stated question, we may state that As a result, the area final polynomial in standard form is: -25pi + 50
What is area?The size of a surface area can be represented as an area. The surface area is the area of an open surface or the border of a three-dimensional object, whereas the area of a planar region or planar region refers to the area of a shape or flat layer. The area of an item is the entire amount of space occupied by a planar (2-D) surface or form. Make a square with a pencil on a sheet of paper. A two-dimensional character. On paper, the area of a form is the amount of space it takes up. Assume the square is made up of smaller unit squares.
To calculate the area of the darkened areas, subtract the area of the circle from the area of the square.
Then, determine the square's side length. Because the circle's diameter is ten, the radius is five. Because the diagonal of a square equals the diameter of a circle, we can use the Pythagorean theorem to calculate the side length:
[tex]s^2 + s^2 = 10^2\\2s^2 = 100\\s^2 = 50\\s = \sqrt(50) = 5 * \sqrt(2)[/tex]
The square's area is then:
[tex]A_{square} = s^2 = (5 * \sqrt(2))^2 = 50[/tex]
The circle's area is:
[tex]A_{circle} = pi * r^2 = pi * 5^2 = 25 * pi[/tex]
The shaded region's area is:
[tex]A_{shaded} = A_{square} - A_{circle} = 50 - 25 * pi[/tex]
As a result, the final polynomial in standard form is:
-25pi + 50
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What is the composition of linear transformation matrix?
A linear transformation matrix is a square matrix that represents a linear transformation of a vector space. The composition of linear transformation matrices is equivalent to the composition of linear transformations they represent.
In general, the composition of two linear transformations A and B can be represented by the matrix product AB. Therefore, the composition of two linear transformation matrices, say A and B, would be the matrix product AB.
Linear transformations are functions that map vectors from one vector space to another in a linear way. These transformations can be represented by matrices, which can be composed to represent the composition of linear transformations.
The composition of two linear transformations represented by matrices involves multiplying the matrices together. To perform this multiplication, we need to ensure that the number of columns in the first matrix matches the number of rows in the second matrix. The resulting matrix will have the same number of rows as the first matrix and the same number of columns as the second matrix.
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if a data set is symmetrical, which statistical measure best represents the entire spread of the data set?
The best statistical measure to represent the entire spread of the data set when a data set is symmetrical is the standard deviation.
The standard deviation is a measure of how much the individual data points vary from the mean of the data set.
It is calculated by taking the square root of the variance.
It is the average of the squared differences of each data point from the mean.
In a symmetrical data set, the mean, median, and mode are all equal and located at the center of the data set.
This represents that the data points are evenly distributed around the center.
The standard deviation can provide a good measure of the spread of the data points from this center.
Other measures of spread representing the range or interquartile range, may not be as useful in a symmetrical data set .
As they are more affected by outliers and skewness in the data.
Therefore, the symmetrical data set in best way represented by statistical measure known as standard deviation.
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listed are 29 ages for academy award winning best actors in order from smallest to largest. 18; 21; 22; 25; 26; 27; 29; 30; 31; 33; 36; 37; 41; 42; 47; 52; 55; 57; 58; 62; 64; 67; 69; 71; 72; 73; 74; 76; 77 a. (5pts) find the score at the 20th percentile
The score at the 20th percentile is 27.
To find the score at the 20th percentile of the 29 ages for Academy Award winning best actors, follow the steps below:
Arrange the given ages from smallest to largest.
18; 21; 22; 25; 26; 27; 29; 30; 31; 33; 36; 37; 41; 42; 47; 52; 55; 57; 58; 62; 64; 67; 69; 71; 72; 73; 74; 76; 77
Determine the total number of data points
n = 29
Find the rank of the percentile
20th percentile = (20/100) * 29 = 5.8 = 6 (rounded to the nearest whole number).The rank of the percentile is 6.
Use the rank to determine the corresponding data value. The corresponding data value is the value at the 6th position when the data is arranged in ascending order. The score at the 20th percentile is 27.
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When a researcher draws conclusions about a population based on the results of a test on a sample, he or she is most likely using which of the following? a) inductive statistics b) deductive statistics c) descriptive statistics d) inferential statistics
When a researcher draws conclusions about a population based on the results of a test on a sample, he or she is most likely using inferential statistics. Therefore Option A is correct.
Inferential statistics: It involves using sample data to make inferences or draw conclusions about a population. In this case, the researcher is using the results from the sample to make inferences about the population from which the sample was drawn.
Deductive statistics, inductive statistics, and descriptive statistics are other branches of statistics that are used for different purposes.
Deductive statistics:Deductive statistics involves starting with a general principle or theory and testing it with data, Inductive statistics:Inductive statistics involves starting with data and using it to develop a theory or principle. Descriptive statistics: Descriptive statistics involves summarizing and describing data using measures such as mean, median, and standard deviation.Therefore the researcher draws a conclusion to use inferential statistics about a population based on test of sample.Option A is correct.
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We revisit a probabilistic model for a fault diagnosis problem from an earlier homework. The class variable C represents the health of a disk drive: C = 0 means it is operating normally; and C = 1 means it is in failed state. When the drive is running it continuously monitors itself using temperature and shock sensor, and records two binary features, X and Y. X =lif the drive has been subject to shock (e.g;, dropped) , and X = 0 otherwise Y =1if the drive temperature has ever been above 70*C, and Y = 0 otherwise. The following table defines the joint probability mass function of these three random variables: pxyc(r,y, c) 0.1 0.2 0.2 0 0 0 0 0 0 0.05 0.25
The probability of the disk drive being in a normal state is 0.5, and the probability of the disk drive being in a failed state is 0.3.
The given table represents the joint probability mass function of the random variables, pxyc (r, y, c). r, y, and c denote the temperature, shock sensor, and health status of the disk drive. The values of r, y, and c are binary.The joint probability mass function of three random variables r, y, and c can be represented as follows:pxyc (r, y, c)= P(r, y, c)Here,P(r=0, y=0, c=0)= 0.1, P(r=0, y=1, c=0)= 0.2, P(r=1, y=0, c=0)= 0.2,P(r=0, y=0, c=1)= 0, P(r=0, y=1, c=1)= 0, P(r=1, y=0, c=1)= 0,P(r=0, y=0, c=0)= 0, P(r=0, y=1, c=0)= 0, P(r=1, y=1, c=0)= 0.05,P(r=0, y=0, c=1)= 0.25, P(r=0, y=1, c=1)= 0, P(r=1, y=0, c=1)= 0.From the given table, the probability of the disk drive being in a normal state, C=0, is P(C=0)=P(r=0, y=0, c=0)+P(r=0, y=1, c=0)+P(r=1, y=0, c=0)=0.1+0.2+0.2=0.5Hence, the probability of the disk drive being in a failed state, C=1, is:P(C=1)=P(r=0, y=0, c=1)+P(r=0, y=1, c=1)+P(r=1, y=0, c=1)+P(r=1, y=1, c=0)=0.25+0+0+0.05=0.3Therefore, the probability of the disk drive being in a normal state is 0.5, and the probability of the disk drive being in a failed state is 0.3.
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please help i have been trying to get an answer for 5+ hours
How is the quotient of 556 and 16 determined using an area model?
Enter your answers in the boxes to complete the equations. Your final answer should be a mixed number in simplest form.
Answer:
To use an area model to determine the quotient of 556 and 16, we can divide a rectangle of area 556 into 16 equal parts. Each part will have an area of 556/16.
We can start by dividing 556 into 16 groups of 10 (160), and then into 16 groups of 3 (48). That leaves us with a remainder of 4.
So we have:
556 = 16 x 34 + 48 + 4
This shows that 556 can be written as 16 times some whole number (34) plus a remainder of 48 + 4/16.
Simplifying the remainder, we have:
48 + 4/16 = 48 + 1/4 = 48.25
Therefore, the quotient of 556 and 16 is:
556/16 = 34 1/4
The quotient of 556 and 16 using an area model can be determined by producing a rectangle with the total area of 556 and one side of 16. The length of the other side will be the quotient. In this case, the quotient is 34 3/4.
Explanation:When asked to determine the quotient of 556 and 16 using the area model, one way to think of this is making a rectangle. The total area is 556 and one side is 16. The length of the other side will be the quotient.
Start by first estimating how many times 16 could fit into 556. Let's take 30 as an estimate, because 30*16 = 480, which is relatively close to 556. Draw a rectangle with the width of 16 and the length of 30.
Find the difference between the rectangle's area and 556. So, 556 - 480 = 76. Now, 76 is our remaining area to fill. 16 goes into 76 four more times, adding up to 64.
There is still a leftover area, which is 76-64 = 12. This is smaller than our width of 16. So, your final answer is 34 12/16 or 34 3/4 in simplest form.
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See the image posted
The probability that both bulbs are red is 0.126 and The probability that the first bulb selected is red and the second yellow is 0.113
What is Probability?Probability means the possible outcome occur when an event take place.
(a) The probability that both bulbs are red ,
= 11/30 * 10/29
= 11/87
= 0.126
So, The probability that both bulbs are red is 0.126
(b) The probability that the first bulb selected is red and the second yellow,
= 11/30 * 9/29
= 33/290
= 0.113
So, The probability that the first bulb selected is red and the second yellow is 0.113
(c) The probability that the first bulb selected is yellow and the second red,
= 9/30 * 11/29
= 33/290
= 0.113
So, The probability that the first bulb selected is yellow and the second red is 0.113
(d) The probability that one bulb is red and the other yellow,
= 33/290 + 33/290 ( Add (b) and (c) )
= 33/145
= 0.227
And, The probability that one bulb is red and the other yellow is 0.227 .
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M/S Sing Trader purchased refrigerator for Rs.10,000 taxable amount. They sold it to
Amrutbhai for Rs. 12,000 taxable amount. The rate of GST is 28%, then find the CGST
and SGST to be paid by M/S Sing Trader
The CGST and SGST that M/S Sing Trader must pay as the GST rate is 28% is Rs. 280 CGST and Rs. 280 SGST.
Given that,
M/S Sing Trader spent Rs. 10,000 in taxable revenue for a refrigerator. For a taxable amount of Rs. 12,000, they sold it to Amrutbhai.
We have to find the CGST and SGST that M/S Sing Trader must pay as the GST rate is 28%.
We know that,
Input tax = 10000 × 28%
Output tax = 12000 × 28%
GST payable = 12000 × 28% - 10000 × 28%
GST payable = 28% (12000-10000)
GST payable = 28% (2000)
GST payable = [tex]\frac{28}{100}[/tex](2000)
GST payable = 28×20
GST payable = 560
CGST = SGST = [tex]\frac{GST}{2}[/tex] = [tex]\frac{560}{2}[/tex] = Rs. 280
Therefore, The CGST and SGST that M/S Sing Trader must pay as the GST rate is 28% is Rs. 280 CGST and Rs. 280 SGST.
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5. Solve the following problems. Note: In those problems the geometric multiplicity is less than algebraic multiplicity. (a)d/ dx = ( 1 −44 −7) x2−30
Answer:
-130
Step-by-step explanation:
Math question please help
TU is a perpendicular bisector.
What is perpendicular bisector?
A line that divides a line segment into two equal halves and forms a 90-degree angle at the point of intersection is called a perpendicular bisector.
To put it another way, a perpendicular bisector separates a line segment at its midpoint, creating a 90-degree angle.
A line or line segment that divides a given line segment into two equal portions is known as a perpendicular bisector.
The word "bisect" refers to dividing equally.
The line segment that perpendicular bisectors overlap forms four 90° angles on either side.
A line or line segment is said to be perpendicular when it forms a 90° angle with another line or line segment.
Hence, TU is a perpendicular bisector.
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a chess club with 80 memberd is electing a new presidentm jose received 52 votes. what percentage of the club members voted for Jose?
Answer:
Step-by-step explanation:
(52 divided by 80) multiplied by 100
that will give you the answer
for h(x) = 4x-1, find h(0) and h(2)
Answer:
- 1 and 7
Step-by-step explanation:
to find h(0) substitute x = 0 into h(x)
h(0) = 4(0) - 1 = 0 - 1 = - 1
to find h2) substitute x = 2 into h(x)
h(2) = 4(2) - 1 = 8 - 1 = 7
1. school a's graduation rate is 10 points higher than school b's. how much higher do we expect a's giving rate to be? 2. how does the answer to question 1 change if we learn that a and b have identical student-to-faculty ratio? why would the answer to question 1 change? 3. which of the 123 schools has the most (least) giving rate? please elaborate on your finding as to what other variables (s) might have contributed to the differences in giving rates? 4. consider a school similar to ours. we have a 67% graduation rate and a student-to-faculty ratio of 17:1, 34% of the classes have fewer than 20 students, 23% of the classes have more than 50 students, and we have a freshman retention rate of 77%. should this school's giving rate be greater than or less than 8%?
To estimate the difference between the giving rates of school A and school B, we must first identify the missing value. It is not given in the statement.
1. However, it can be assumed that the giving rate of school B is 0%, as the difference between the two figures should be expressed as a percentage.
If school A has a graduation rate of 90%, we can estimate its giving rate as follows: Given that school A's graduation rate is 10 points higher than school B's graduation rate, the Giving rate of school A = (90 + 10)% = 100%Thus, school A's giving rate is expected to be 100%.2. If we learn that schools A and B have identical student-to-faculty ratios, the answer to the previous question would not change. The student-to-faculty ratio has no bearing on the graduation and giving rates of the school.
The student-to-faculty ratio is a measure of class size and may be used to determine how well the school is prepared to manage the educational needs of its students.3. The question does not provide a list of 123 schools to choose from. It is not possible to determine the school with the highest or lowest giving rate without this information.
4. To calculate whether the school's giving rate is greater or lesser than 8%, we must first estimate the value of the giving rate. The problem statement does not provide a clue to the school's giving rate.
Nonetheless, we can estimate that the giving rate of a school with a 67% graduation rate and a freshman retention rate of 77% would be relatively lower than 8%. Schools with a higher graduation rate are more likely to have a higher giving rate because their alumni are more inclined to contribute to the institution.Therefore, it is not possible to calculate the school's giving rate without more information.
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consider using a z test to test h0: p 5 .6. determine the p-value in each of the following situations. a. ha:p..6,z51.47 b. ha:p,.6,z522.70 c. ha:p?.6,z522.70 d. ha:p,.6,z5.25
a) P-value = P(z<1.47) = 0.9292.
b) P-value = P(z>2.70) = 0.0036.
c) P-value = 2 × P(z>2.70) = 0.0072.
d) P-value = P(z>2.5) = 0.0062.
Z-test is a statistical test for the null hypothesis, which refers to the population mean, where the population standard deviation is known. P-value represents the probability value for any hypothesis, where a small p-value indicates that the null hypothesis is less accurate.
P-value, for the given values of z-test is calculated as follows: a) For ha: p < .6, z=1.47The p-value for this hypothesis test is calculated as follows: P-value = P(z<1.47) = 0.9292. Therefore, the P-value is 0.9292. b) For ha: p > .6, z=2.70The p-value for this hypothesis test is calculated as follows.
P-value = P(z>2.70) = 0.0036. Therefore, the P-value is 0.0036.c) For ha: p ≠ .6, z=2.70The p-value for this hypothesis test is calculated as follows: P-value = 2 × P(z>2.70) = 0.0072.
Therefore, the P-value is 0.0072.d) For ha: p > .6, z=2.5The p-value for this hypothesis test is calculated as follows: P-value = P(z>2.5) = 0.0062. Therefore, the P-value is 0.0062.
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Which of the following represents vector vector t equals vector PQ in trigonometric form, where P (–13, 11) and Q (–18, 2)?
t = 10.296 sin 60.945°i + 10.296 cos 60.945°j
t = 10.296 sin 240.945°i + 10.296 cos 240.945°j
t = 10.296 cos 60.945°i + 10.296 sin 60.945°j
t = 10.296 cos 240.945°i + 10.296 sin 240.945°j
The correct answer is option (C).
What are the fundamental forms of trigonometry?Sine (sin), cosine (cos), tangent (tan), cosecant (csc), secant (sec), and cotangent are the six functions (cot).
The equation t = Q - P, where Q and P are the specified locations, can be used to determine the components of the vector t. Therefore:
t = (–18, 2) – (–13, 11) = (–18 + 13, 2 – 11) = (–5, –9) (–5, –9)
The vector's magnitude is given by:
|t| = √(–5)^2 + (–9)^2 = √106 ≈ 10.296
The formula = tan1 (y/x), where x and y are the vector's components, can be used to determine the direction of the vector t. The direction must be expressed in terms of sine and cosine functions because we are required to represent the vector in trigonometric form.
θ = tan⁻¹ (–9/–5) ≈ 60.945°
In trigonometric form, the vector t is thus represented as follows:
t = [t|cos|i] + [t|sin|j]
We get the following by altering the values of |t| and:
t = 10.296 cos I + 10.296 sin j of angle 60.945
As a result, the following is the proper trigonometric representation of the vector t:
t = 10.296 cos I + 10.296 sin j of angle 60.945
Thus, alternative is the right response (C).
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